package com.project.homework4_9.dao.impl;

import com.project.homework4_9.dao.IUser;

public class UserImpl implements IUser {
    @Override
    public void run() {
       throw new ArrayIndexOutOfBoundsException();
    }

    @Override
    public void work() {
       throw new NullPointerException();
    }

    @Override
    public void sleep() {
        System.out.println("正常运行");
    }
}
